void setup()
{
  uint32_t arraysize = 1024;
  Serial.begin(57600);
  
  XMCRA |= 1ul<<7; // Switch ext mem iface on
  XMCRB = 0;

  static uint32_t dataBuffer1[1024];
  static uint32_t dataBuffer2[1024];
  static uint32_t dataBuffer3[1024];
  static uint32_t dataBuffer4[1024];
  static uint32_t dataBuffer5[1024];
  uint32_t* dataBuffer6 = new uint32_t[arraysize];
  uint32_t* dataBuffer7 = new uint32_t[arraysize];
  
  Serial.println();
  Serial.print("Dynamic buffer 1 of ");
  Serial.print(arraysize * sizeof(uint32_t));
  Serial.print(" bytes created, address: 0x");
  Serial.println((uintptr_t)dataBuffer1, HEX);
  Serial.print("Dynamic buffer 2 of ");
  Serial.print(arraysize * sizeof(uint32_t));
  Serial.print(" bytes created, address: 0x");
  Serial.println((uintptr_t)dataBuffer2, HEX);
  Serial.print("Dynamic buffer 3 of ");
  Serial.print(arraysize * sizeof(uint32_t));
  Serial.print(" bytes created, address: 0x");
  Serial.println((uintptr_t)dataBuffer3, HEX);
  Serial.print("Dynamic buffer 4 of ");
  Serial.print(arraysize * sizeof(uint32_t));
  Serial.print(" bytes created, address: 0x");
  Serial.println((uintptr_t)dataBuffer4, HEX);
  Serial.print("Dynamic buffer 5 of ");
  Serial.print(arraysize * sizeof(uint32_t));
  Serial.print(" bytes created, address: 0x");
  Serial.println((uintptr_t)dataBuffer5, HEX);
  Serial.print("Dynamic buffer 6 of ");
  Serial.print(arraysize * sizeof(uint32_t));
  Serial.print(" bytes created, address: 0x");
  Serial.println((uintptr_t)dataBuffer6, HEX);
  Serial.print("Dynamic buffer 7 of ");
  Serial.print(arraysize * sizeof(uint32_t));
  Serial.print(" bytes created, address: 0x");
  Serial.println((uintptr_t)dataBuffer7, HEX);

  
  for (size_t i=0; i<arraysize; ++i)
  {
    dataBuffer1[i] = i*2;
    dataBuffer2[i] = i*2;
    dataBuffer3[i] = i*2;
    dataBuffer4[i] = i*2;
    dataBuffer5[i] = i*2;
    dataBuffer6[i] = i*2;
    dataBuffer7[i] = i*2;
  }
  Serial.println();
  Serial.println();
/*
  Serial.println("Data Buffer 1");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i+3], DEC);
  }

  Serial.println();
  Serial.println("Data Buffer 2");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i+3], DEC);
  }
  
  Serial.println();
  Serial.println("Data Buffer 3");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i+3], DEC);
  }

  Serial.println();
  Serial.println("Data Buffer 4");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i+3], DEC);
  }
  
  Serial.println();
  Serial.println("Data Buffer 5");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i+3], DEC);
  }

  Serial.println();
  Serial.println("Data Buffer 6");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i+3], DEC);
  }
  
  Serial.println();
  Serial.println("Data Buffer 7");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i+3], DEC);
  }



  
  for (size_t i=0; i<arraysize; ++i)
  {
    dataBuffer1[i] = 2048 - dataBuffer1[i];
    dataBuffer2[i] = 2048 - dataBuffer2[i];
    dataBuffer3[i] = 2048 - dataBuffer3[i];
    dataBuffer4[i] = 2048 - dataBuffer4[i];
    dataBuffer5[i] = 2048 - dataBuffer5[i];
    dataBuffer6[i] = 2048 - dataBuffer6[i];
    dataBuffer7[i] = 2048 - dataBuffer7[i];
  }
  Serial.println();
  Serial.println();
  

  Serial.println("Data Buffer 1");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer1[i+3], DEC);
  }

  Serial.println();
  Serial.println("Data Buffer 2");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer2[i+3], DEC);
  }
  
  Serial.println();
  Serial.println("Data Buffer 3");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer3[i+3], DEC);
  }

  Serial.println();
  Serial.println("Data Buffer 4");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer4[i+3], DEC);
  }
  
  Serial.println();
  Serial.println("Data Buffer 5");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer5[i+3], DEC);
  }

  Serial.println();
  Serial.println("Data Buffer 6");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer6[i+3], DEC);
  }
  
  Serial.println();
  Serial.println("Data Buffer 7");
  for (size_t i=0; i<arraysize; i+=4)
  {
    Serial.println();
    Serial.print(i, DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i+1], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i+2], DEC);
    Serial.print('\t');
    Serial.print(dataBuffer7[i+3], DEC);
  }
//----------------------------------------*/
}

void loop()
{
}

void enableExternalMemory() __attribute__((naked,used)) __attribute__((section (".init3")));
void enableExternalMemory()
{
  XMCRA = (1<<SRE);
}